Shutter-worker.



R. KIRCHHOFF. SHUTTER WORKER.

A PLIOATION FILED NOV. 6, 191

Patented Sept. 23, 1913.

TH @TATEb PATENT @FFTCE.

RICHARD KIRCHHOFF, OF ZURICH, SWITZERLAND.

SHUTTER-WORKER.

To all whom it may concern Be it known that I, RICHARD Kmonnorr, a subject of the Emperor of Germany, residing at Renggerstrasse S8, Zurich, Switzerland, have invented new and useful Im provements in SlIHttGI-l/VOIlH-H'S; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to a device for moving and fastening shutters from inside a room.

My invention more properly relates to that class of shutter workers in which a shaft extending through the frame of a window carries an arm which is connected to the shutter by a link.

In my improved mechanism there is pro 'vided at least one fastening device each, for the closed position, and for the open position of the shutter, so arranged that when opening, as well as when closing, a shaft is turned in but one direction to first release the shutter from the fastening device of its initial position, then turn the shutter, and finally secure it by the fastening device of its end position.

An illustrative embodiment of my invention is represented in the accompanying drawing, wherein:

Figure 1 is a partial inside view of a window with the shutters closed to which is applied a device according to this invention. Fig. 2 is an enlarged plan view of parts of the device with parts of the window, the shutter being opened. Fig. 3 is a side elevation of a fastening for the shutter when closed, and Fig. at a perspective view of a second fastening for the same position of the shutter.

The rotatable shaft 1 is disposed diagonally to the face of the window and extending horizontally through the frame. The shaft 1 may be turned either mechanically or by hand. In the example illustrated on the drawing the lever is supposed to be actuated by a handle 23. To the shaft 1 is rigidly connected an arm 2 which may be formed either straight or suitably curved, the arm being disposed substantially at right angles to the shaft. The arm 2 is loosely Specification of Letters Patent.

Application filed November 6, 1911.

Patented Sept. 23,1913.

Serial No. 658,860.

connected by a link 3 to the arm 4; of the double armed lever l, (3 (Fig. l) which is pivot-ally supported on the shutter by a pivot 5. The arm (3 of the double armed lever is in contact with the part 7 of a double latch. In the example illustrated in the drawing the latter comprises besides the part 7 a part 10 (Fig. 2). Both parts are mounted to turn about the pivot S the part 7 acting on the part 10 by means of a pin 9 fixed to the part 10. The double latch is under the action of a spring 11. When the shutter is open the part 10 engages a hook 12 and when the shutter is closed the part 7 a pin 21.. In the example illustrated in the drawing there is provided a second fastening device which is operated by a rod 13 loosely supported by two rings secured to the shutter. One end of the rod 13 is in contact with the part 7 of of the double-latch and the other end with the vertical arm of a crank lever 141-, which when turning releases by its horizontal arm the latch 15 and 'aises the rod 16 vertically movable in rings fixed to the shutter. By this a latch 17 (Fig. arranged at the upper end of the shutter is turned around the axle 19 against the action of a spring 18 and released from the fastening 20.

The device acts as follows: If for instance the shutter is to be closed the shaft 1 is turned by means of handle 23 in the direction of the arrow shown in Fig. 2. The rod 3 and the upper arm l of the double armed lever l, 6 are moved thereby in the direction of the arrows shown in Fig. 2, causing the parts 7 and 10 of the double latch to turn in the direction of the arrows in Fig. and the shutter to be disengaged from the hook .12. Il creafter the shutter is drawn by the rod 23 and swung inward. While at the beginning of this rotation of the shutter the rod 3 acts on the arm et from the side of the hinge the rod is displaced within the second half of the rotation so that at the end of the rotation the rod #3 acts on the arm l from the opposite direction. The part 7 of the double latch engages then the pin 21. If the shutter is to be opened again the shaft 1 is turned in opposite direction of the arrow in Fig. 2. The rod 3, the arm 41; and the arm (3 are moved thereby in the direction of the arrows shown in Fig. 1, whereby the double latch is turned in the same direction as before the beginning of the closing movement, since, as described above, the rod 3 new acts on the arm a from the opposite side. Hereby the part 7 of the double latch is disengagedfrom the pin 21 as Well as the other latches 15 and 17 are disconnected from the fastenings .by means of the rods 13 and 16. Hereafter by further turning the shaft 1 the shutter is opened and finally fastened by the hook 12. I claim:

1.. In a shutter operating mechanism, a.

and finally secured by the fastening device of its end position.

2. In a shutter operating mechanism, a shaft extending through the frame of the Window, an arm carried by said shaft, a lever pivotally'mounted on the shutter, a link connecting said arm with the lever, a double latch acted upon by said lever, a fastening engaging the latch in each of the end positions of the shutter,auxiliary latches operated from the lever, and fastenings for the shutter When closed and engaged by said auxiliary latches.

3. In a shutter operating mechanism, a shaft diagonally extending through the frame of the Window, an arm carried by said shaft, a lever pivotally mounted on the shutter, a link connecting said arm With the le ver, a double latch acted upon by said lever, and a fasteningfor each end position ofthe shutterengaged by said double l atch,-'a crank lever pivot-ally mounted on the shutter, a

substantially horizontal rod loosely supported by the shutter and transmitting motions of said first lever to said cranklever, al atch at the lower edge of the shutter operated by said crank 'l-ever,-a latch at the upperedge of the shutter,-=and a substantially vertical rod loosely supported by the shutter and transmitting inotions of said crank lever to sald upper latch.

In testimony that I claim the foregoing.

as my invention, I have signed my name in presence of 'tWo subscribing Witnesses.

RICHARD KIROHHOFF. Witnesses ARNOLD LEHNER,

CARL

'Gop'ies of this patent maybe obtained for five cents each, by addressing the 0o1'ninissioner of Patents, Washington, D. G. 

